I think you are exaggerating some peoples comments. They are not saying they need to run them they are saying they prefer them. You are also judging people you don’t know and assuming a lot . I have RS Pro’s on my Dekagrams and they are fun do not have as much grip as the 660 but fun. I had 660’s on my Titans and they were awesome. I would also say if someone is running a hybrid or larger TURBO running stickier tires can be great as you don’t get tire spin again i have first hand experience . Do You? Or are you just talking over the internet with an opinion.
It‘s ok to have an opinion but experience is where the rubber hits the road!
Totally opinion, but from experience? ha.
I did exaggerate, that's fair... BUT, my point (Judgement removed, ish) is that many of us use our Fiestas differently (even though they were intended to be a handling car)— so everyone's experience and needs for a tire vary, and don't always apply to the other person. RT660 makes sense (IMO, for someone who autocross & tracks, or strictly beats the snot out of the canyon roads... but if you just put around town, peeling out at stoplights and on-ramps and you think you need 200tw, you need to adjust your throttle inputs, not your grip. But hey, I understand wanting to punch it in 2nd gear occasionally. My point is, tires like that really shine and are worth your money when you FULLY use them, lateral grip and all, not just straight ahead WOT.
My case:
I daily my fiesta (E30, stock turbo, Intercooler etc...) lead a lot of fast-paced canyon runs, and plan for some auto-x soon. I have two wheelsets, stocks for daily use occasional spirited solo runs, and I'm setting aside my 16' TDs for auto-x cross and possibly more intense canyon runs. I used Conti ECS over the last year and never felt the need for more grip during a fast-paced rally... most of the time, if I felt I hit the limits, it was driver error. If I pushed any harder I feel like that's no bueno for public roads...needs to go to the track... THEN I would bother with some RS4, RT600, Star Spec, RE71R whatever. I DID have RS4 on the car for a little while, confidence was AWESOME, but I felt like they were getting fully utilized unless I put them on the track or auto-x.
This time around, I'm looking for a longer-lasting tire, all-season, that can handle SOME hustle on the backroads with my stock wheels. (16s will take a back seat and get some 200tw when auto-x comes into play). I'm looking at Michelin Pilot Sport A/S - had them before and honestly... gripped better than some Hankook ventus 300tw I had... lasted me nearly 45k with heavy use... they're impressive. Another option might be the GMAX AS-05, although they don't seem to be as grippy as the Michelin, but steering sounds really good and they're $80 less!!! I could go with summers (Firehawk, bleh - or Advan Fleva) but it's getting low 30s here in the winter and early spring... not sure I wanna go for a good early morning drive when it's that cold on those.
Anyway... my thoughts.